There are a finite number of super-powers in the world. While some characters have pretty innovative ideas, you tend to always come back to the classics. Controlling the weather is an old standard, and one of the earliest characters to weild this power was a particular Flash villain. He's cropped up in a wide amount of media, so it's very likely that most casual comic readers will already know of him.

Weather Wizard's Comic History

Weather Wizard was invented in 1959 by John Broome & Carmine Infantino, one of the many gimmick villains developed in the era. He's actually probably one of the more reasonable ones; a character that controls the weather might be a pretty comicy idea but it's still a pretty standard super-power. As it turns out, the best way to fight a superhero with super-speed is to alter the terrain of the battlefield. I'm not sure if this is deliberate, but the Flash enemies with the most longevity, like Captain Cold, Heatwave, and Mirror Master all do this in one way or another, and Weather Wizard is clearly a great example of this.

This character actually shows up a LOT. in almost every version of the Flash in popular media, be it his appearance in Superman: the Animated Series or in the CW live-action Flash series, Weather Wizard tends to be the very first villain we see. He was very effectively used by practically every writer to work with the Flash, and while he's never really broken out as a core threat to the DC universe at large he is a central part of the Rogues and of the story of the Flash.

Our Weather Wizard Story

Getting the Weather Wizard just right is a little bit of a tight rope. Obviously, this is a guy who can get very powerful very quickly but who has never really been depicted as a major A-list villain. In order to get him just right you want to state his origins in a way that give him some built-in limitations. Since his ability to control the weather has always been based on technology, we invented the idea of 'nan-satellite clusters' that were created by his brother which he has control of. this would allow him access to all sorts of powers but put very deliberate caps on what he can actually do.

Speaking of his brother, there's actually some potential there. The Flash is a character who always works better when he allies himself with scientists. This role has taken on different shapes in different places, but it actually works really well if Mark's brother Clyde, the person who invented the weather wand, is first introduced to the Flash's universe as an ally of Barry Allen.

Other than that, we've essentially defined the Weather Wizard using his relationship with the Rogues. This means a lot of things, because that particular group does quite a bit, but ultimately this is where Weather Wizard has always been the strongest character.